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authorVeaceslav Falico <vfalico@redhat.com>2014-01-16 00:02:19 +0100
committerDavid S. Miller <davem@davemloft.net>2014-01-16 17:15:42 -0800
commitb01f236c66b214a73816a4083050f73481638a72 (patch)
tree93419442883d7d78abac6bfb4ccc1381d33841b0 /drivers/net/team
parent1d486bfb66971ebacc2a46a23431ace9af70dc66 (diff)
team: block mtu change before it happens via NETDEV_PRECHANGEMTU
Now it catches the NETDEV_CHANGEMTU notification, which is signaled after the actual change happened on the device, and returns NOTIFY_BAD, so that the change on the device is reverted. This might be quite costly and messy, so use the new NETDEV_PRECHANGEMTU to catch the MTU change before the actual change happens and signal that it's forbidden to do it. CC: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/team')
-rw-r--r--drivers/net/team/team.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index b75ae5bde673..dff24e3dde4a 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -2851,7 +2851,7 @@ static int team_device_event(struct notifier_block *unused,
case NETDEV_FEAT_CHANGE:
team_compute_features(port->team);
break;
- case NETDEV_CHANGEMTU:
+ case NETDEV_PRECHANGEMTU:
/* Forbid to change mtu of underlaying device */
return NOTIFY_BAD;
case NETDEV_PRE_TYPE_CHANGE: